Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1152/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Viridian Inc Canada
Original Assignee
Sherritt Gordon Mines Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sherritt Gordon Mines LtdfiledCriticalSherritt Gordon Mines Ltd
Publication of GB780297ApublicationCriticalpatent/GB780297A/en
C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B23/00—Obtaining nickel or cobalt
C22B23/04—Obtaining nickel or cobalt by wet processes
C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
C22B23/0461—Treatment or purification of solutions, e.g. obtained by leaching by chemical methods
Abstract
Powder of a metal of the group copper, nickel and cobalt is precipitated from solutions in which the metal is present as dissolved compound by treatment of the solution with reducing gas at elevated temperature and pressure, the solutions containing minor amounts of higher fatty acids or salts thereof or mixtures containing such acids or salts, e.g. palmitic acid, oleic acid or stearic acid or their salts, which may be added before initiation of the reduction. The metal-bearing solution, preferably ammoniated, may be reduced at a temperature in the range 95 DEG C.-260 DEG C. under a partial pressure of hydrogen of 7-41 atmospheres.
GB1152/56A1955-03-141956-01-12Improved method of producing metal powder from solutions
ExpiredGB780297A
(en)
A procedure for the hydrogenation of mono and dicarboxylic aliphatic acids or of their esters (Machine-translation by Google Translate, not legally binding)